<template>
  <PageWrapper title="标签页+多级field表单" v-loading="loading">
    <div class="mb-4">
      <a-button @click="handleReset" class="mr-2"> 重置表单 </a-button>
      <a-button @click="handleSetValues" class="mr-2"> 设置默认值 </a-button>
      <a-button @click="handleSubmit" class="mr-2" type="primary"> 提交表单 </a-button>
    </div>
    <CollapseContainer title="标签页+多级field表单">
      <Tabs v-model:activeKey="activeKey">
        <TabPane v-for="item in tabsFormSchema" :key="item.key" v-bind="omit(item, ['Form', 'key'])">
          <BasicForm @register="item.Form[0]" />
        </TabPane>
      </Tabs>
    </CollapseContainer>
  </PageWrapper>
</template>

<script lang="ts">
  import { ref, defineComponent } from 'vue'
  import { Tabs } from 'ant-design-vue'
  import { PageWrapper } from '/@/components/Page'
  import { CollapseContainer } from '/@/components/Container'
  import { useMessage } from '/@/hooks/web/useMessage'
  import { omit } from 'lodash-es'
  import { deepMerge } from '/@/utils'
  import { BasicForm, FormSchema, useForm, FormProps, UseFormReturnType } from '/@/components/Form'

  export default defineComponent({
    name: 'TabsFormDemo',
    components: { Tabs, TabPane: Tabs.TabPane, PageWrapper, CollapseContainer, BasicForm },
    setup() {
      type TabsFormType = {
        key: string
        tab: string
        forceRender?: boolean
        Form: UseFormReturnType
      }

      const { createMessage } = useMessage()
      const activeKey = ref('tabs2')
      const loading = ref(false)
      const tabsFormSchema: TabsFormType[] = []

      // 公共属性
      const baseFormConfig: Partial<FormProps> = {
        showActionButtonGroup: false,
        labelWidth: 100,
      }

      // 为每个字段模拟默认值, { tabs1: { field1: '', field2: '' }, tabs2: { field1: '' }, ... }
      const mockDefaultValue: Recordable = {}

      // 模拟5个标签页
      for (let i = 1; i <= 5; ++i) {
        const tabsKey = `tabs${i}`

        // 每个标签页8个字段
        const schemas: FormSchema[] = []
        const row: Recordable = {}

        for (let j = 1; j <= 8; ++j) {
          schemas.push({
            field: `${tabsKey}.field${j}`,
            label: `${tabsKey}-field${j}`,
            component: 'Input',
            colProps: { span: 24 },
          })
          row[`field${j}`] = `field: ${tabsKey}.field${j}, default value`
        }

        mockDefaultValue[tabsKey] = row

        tabsFormSchema.push({
          key: tabsKey,
          tab: tabsKey,
          forceRender: true,
          Form: useForm(Object.assign({ schemas }, baseFormConfig) as FormProps),
        })
      }

      async function handleReset() {
        for (const item of tabsFormSchema) {
          const { resetFields } = item.Form[1]
          await resetFields()
        }
      }

      async function handleSubmit() {
        let lastKey = ''
        loading.value = true
        try {
          const values: Recordable = {}
          for (const item of tabsFormSchema) {
            lastKey = item.key
            const { validate, getFieldsValue } = item.Form[1]
            await validate()
            // 表单已支持多级key
            deepMerge(values, getFieldsValue())
          }

          console.log('submit values: ', values)
          createMessage.success('提交成功！请打开控制台查看')
        } catch (e) {
          // 验证失败或出错，切换到对应标签页
          activeKey.value = lastKey
          console.log(e)
        } finally {
          loading.value = false
        }
      }

      async function handleSetValues() {
        console.log('默认值为: ', mockDefaultValue)
        for (const item of tabsFormSchema) {
          const { setFieldsValue } = item.Form[1]
          await setFieldsValue(mockDefaultValue)
        }
      }
      return {
        omit,
        loading,
        activeKey,
        tabsFormSchema,
        handleReset,
        handleSubmit,
        handleSetValues,
      }
    },
  })
</script>

<style scoped></style>
